A method of manufacturing magnetic heads is provided in which a slider and a back yoke are joined to form a magnetic head main body. The main body is then fixedly bonded to a holding member that supports the magnetic head as a single unit. A plurality of such magnetic heads are placed circumferentially on a soft adhesive sheet attached to a cylindrical base block. Touch lapping is then performed to a slider surface of the magnetic heads with a slurry on a surface table. Processing faces of the heads can be positioned flush with the surface table due to an elasticity of the soft adhesive sheet, thereby equally minimizing lapping amounts.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A method of manufacturing magnetic heads which comprise: a slider which faces a magnetic recording medium and includes a magnetic core having a gap; and a back yoke which includes a coil provided corresponding to the magnetic core, is connected to the magnetic core to thereby form a closed magnetic path, and is bonded to the slider thereby holding the slider; the manufacturing method comprising: assembling a plurality of magnetic head main bodies by joining the slider and the back yoke of each respective magnetic head main body together to form a plurality of magnetic heads; fixedly bonding each said magnetic head to a holding member that is a mount block to rigidly support each magnetic head as a single unit; placing the plurality of magnetic heads circumferentially on a soft adhesive sheet attached to a cylindrical base block; and subsequently touch lapping a slider surface of each of the plurality of magnetic heads.
2. The manufacturing method as set forth in claim 1 , wherein each magnetic head includes a plurality of magnetic cores having respective recording densities different from each other.
3. A method of manufacturing magnetic heads which comprise: a slider which faces a magnetic recording medium and includes a magnetic core having a gap; and a back yoke which includes a coil provided corresponding to the magnetic core, is connected to the magnetic core to thereby form a closed magnetic path, and is bonded to the slider thereby holding the slider; the manufacturing method comprising: assembling a plurality of magnetic head main bodies by joining the slider and the back yoke of each respective magnetic head main body together to form a plurality of magnetic heads; fixedly bonding each said magnetic head to a holding member that is a gimbal to flexibly support each magnetic head as a single unit; placing the plurality of magnetic heads circumferentially on a soft adhesive sheet attached to a cylindrical base block; and subsequently touch lapping a slider surface of each of the plurality of magnetic heads.
4. The manufacturing method as set forth in claim 3 , wherein each magnetic head includes a plurality of magnetic cores having respective recording densities different from each other.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
April 3, 2001
January 13, 2004
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